The universal covering group G -- Representations -- Automorphic models -- Standard and Whittaker models -- Intertwining operators -- Fourier coefficients of automorphic models -- The operators ?? -- Eisenstein models -- L2(?/G, X) -- The analytic continuation of the Eisenstein model -- Spectral decomposition of eL2(?/G,X) -- The space H ? ? -- Convolution operators -- Scalar product of Poincarรฉ series -- Sum formula